YRangan Chatterjeeou may know Dr Rangan Chatterjee as the star power of the BBC’s Doctor in the House TV series. He is also one of that rare breed in modern medicine: a doctor with an open heart and mind.

Chatterjee has been examining a deadly sickness in medicine today. Its major symptom is doctors who don’t know enough about nutrition. It is about doctors who can’t – or won’t – acknowledge the real root causes of patients’ ill health. Spoiler alert: it’s not a deficiency of drugs.

Here, Chatterjee looks at why doctors need more education. It begins with understanding that ‘the food you eat can be the safest and most powerful form of medicine or the slowest form of poison’. – Marika Sboros